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16830 (1997 WQ7)
Classification: Main-belt Asteroid          SPK-ID: 2016830
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1243091424526759 4.0656e-08  
a 2.189851495211009 6.1962e-09 au
q 1.917632933742618 8.8945e-08 au
i 1.600263881951034 3.2812e-06 deg
node 259.0904907876053 0.00014845 deg
peri 80.68916513123288 0.00014899 deg
M 108.9958221678657 1.3152e-05 deg
tp 2458842.133195644651
(2019-Dec-24.63319564)
4.2844e-05 TDB
period 1183.642152533451
3.24
5.0236e-06
1.375e-08
d
yr
n .3041459779287693 1.2909e-09 deg/d
Q 2.4620700566794 6.9664e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1544  
   data-arc span      9087 days (24.88 yr)  
   first obs. used      1996-04-17  
   last obs. used      2021-03-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52275  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:43:27  

Additional Information
 Earth MOID = .907692 au 
 Jupiter MOID = 2.87582 au 
 T_jup = 3.663 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0   n/a MPO337401  

16830 (1997 WQ7)          Discovered 1997-Nov-19 by Shimizu, Y., Urata, T. at Nachi-Katsuura
Reference: 20000913/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 WQ7 = 1996 HO9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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